22123322013 has 32 divisors (see below), whose sum is σ = 32740646400. Its totient is φ = 13202320896.

The previous prime is 22123321999. The next prime is 22123322021. The reversal of 22123322013 is 31022332122.

It is a happy number.

It is not a de Polignac number, because 22123322013 - 2¹⁴ = 22123305629 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22123322513) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 144433 + ... + 255161.

It is an arithmetic number, because the mean of its divisors is an integer number (1023145200).

Almost surely, 2^22123322013 is an apocalyptic number.

It is an amenable number.

22123322013 is a deficient number, since it is larger than the sum of its proper divisors (10617324387).

22123322013 is a wasteful number, since it uses less digits than its factorization.

22123322013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110901.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 22123322013 its reverse (31022332122), we get a palindrome (53145654135).

The spelling of 22123322013 in words is "twenty-two billion, one hundred twenty-three million, three hundred twenty-two thousand, thirteen".